diff --git a/src/rawmidi/ump.c b/src/rawmidi/ump.c
index 119b58f6..25fbaff2 100644
--- a/src/rawmidi/ump.c
+++ b/src/rawmidi/ump.c
@@ -674,6 +674,7 @@ const char *snd_ump_block_info_get_name(const snd_ump_block_info_t *info)
 
 /**
  * \brief get UMP block information
+ * \param ump UMP handle
  * \param info pointer to a snd_ump_block_info_t structure
  * \return 0 on success otherwise a negative error code
  *
diff --git a/src/rawmidi/ump_local.h b/src/rawmidi/ump_local.h
index 53ce9a66..53ea9701 100644
--- a/src/rawmidi/ump_local.h
+++ b/src/rawmidi/ump_local.h
@@ -3,8 +3,10 @@
 #include "ump.h"
 #include "ump_msg.h"
 
+#ifndef DOC_HIDDEN
 struct _snd_ump {
 	snd_rawmidi_t *rawmidi;
 	unsigned int flags;
 	int is_input;
 };
+#endif /* DOC_HIDDEN */